Stadium: Center Court Round: 28 Ground: Hardcourt outdoor
| Challenger Seoul MD | 2018/05/03 09:20 | Hsieh/Rungkat v Matsui/Nielsen | 6-7,1-6 |
| Challenger Seoul MD | 2018/04/30 09:20 | Matsui/Nielsen v Kim/Lee | 6-4,6-2 |
| Challenger Seoul MD | 2018/05/03 11:30 | Reid/Sela v Ito/McDonald | 4-6,5-7 |
| Challenger Seoul MD | 2018/04/30 08:15 | Ito/McDonald v Lim/Yoon | 4-6,6-3,10-2 |